// src/Extension.ts
import {
  commands,
  Extension
} from "@tiptap/core";

// src/MarkdownManager.ts
import {
  attrsEqual as attrsEqual2,
  callOrReturn,
  decodeHtmlEntities,
  encodeHtmlEntities,
  flattenExtensions,
  generateJSON,
  getExtensionField,
  getSchema,
  marksEqual,
  sortExtensions
} from "@tiptap/core";
import { marked } from "marked";

// src/utils.ts
import { attrsEqual } from "@tiptap/core";
function wrapInMarkdownBlock(prefix, content) {
  const lines = content.split("\n");
  const output = lines.flatMap((line) => [line, ""]).map((line) => `${prefix}${line}`).join("\n");
  return output.slice(0, output.length - 1);
}
function findMarksToClose(currentMarks, nextNode) {
  const marksToClose = [];
  Array.from(currentMarks.entries()).forEach(([markType, currentMark]) => {
    if (!nextNode) {
      marksToClose.push(markType);
      return;
    }
    const nextMark = (nextNode.marks || []).find(
      (mark) => mark.type === markType && attrsEqual(mark.attrs, currentMark.attrs)
    );
    if (!nextMark) {
      marksToClose.push(markType);
    }
  });
  return marksToClose;
}
function findMarksToOpen(activeMarks, currentMarks) {
  const marksToOpen = [];
  Array.from(currentMarks.entries()).forEach(([markType, mark]) => {
    const activeMark = activeMarks.get(markType);
    if (!activeMark || !attrsEqual(activeMark.attrs, mark.attrs)) {
      marksToOpen.push({ type: markType, mark });
    }
  });
  return marksToOpen;
}
function findMarksToCloseAtEnd(activeMarks, currentMarks, nextNode, markSetsEqual) {
  const isLastNode = !nextNode;
  const nextNodeHasNoMarks = nextNode && (!nextNode.marks || nextNode.marks.length === 0);
  const nextNodeHasDifferentMarks = nextNode && nextNode.marks && !markSetsEqual(currentMarks, new Map(nextNode.marks.map((mark) => [mark.type, mark])));
  const marksToCloseAtEnd = [];
  if (isLastNode || nextNodeHasNoMarks || nextNodeHasDifferentMarks) {
    if (nextNode && nextNode.marks) {
      Array.from(activeMarks.entries()).reverse().forEach(([markType, activeMark]) => {
        const nextMark = nextNode.marks.find(
          (m) => m.type === markType && attrsEqual(m.attrs, activeMark.attrs)
        );
        if (!nextMark) {
          marksToCloseAtEnd.push(markType);
        }
      });
    } else if (isLastNode || nextNodeHasNoMarks) {
      marksToCloseAtEnd.push(...Array.from(activeMarks.keys()).reverse());
    }
  }
  return marksToCloseAtEnd;
}
function closeMarksBeforeNode(activeMarks, getMarkClosing) {
  let beforeMarkdown = "";
  Array.from(activeMarks.keys()).reverse().forEach((markType) => {
    const mark = activeMarks.get(markType);
    const closeMarkdown = getMarkClosing(markType, mark);
    if (closeMarkdown) {
      beforeMarkdown = closeMarkdown + beforeMarkdown;
    }
  });
  activeMarks.clear();
  return beforeMarkdown;
}
function reopenMarksAfterNode(marksToReopen, activeMarks, getMarkOpening) {
  let afterMarkdown = "";
  Array.from(marksToReopen.entries()).forEach(([markType, mark]) => {
    const openMarkdown = getMarkOpening(markType, mark);
    if (openMarkdown) {
      afterMarkdown += openMarkdown;
    }
    activeMarks.set(markType, mark);
  });
  return afterMarkdown;
}
function isTaskItem(item) {
  const raw = item.raw || item.text || "";
  const match = raw.match(/^(\s*)[-+*]\s+\[([ xX])\]\s+/);
  if (match) {
    return { isTask: true, checked: match[2].toLowerCase() === "x", indentLevel: match[1].length };
  }
  return { isTask: false, indentLevel: 0 };
}
function assumeContentType(content, contentType) {
  if (typeof content !== "string") {
    return "json";
  }
  return contentType;
}

// src/MarkdownManager.ts
var isHtmlUnknownElement = (element) => {
  const ctor = window.HTMLUnknownElement;
  return typeof ctor === "function" && element instanceof ctor;
};
var MarkdownManager = class {
  /**
   * Create a MarkdownManager.
   * @param options.marked Optional marked instance to use (injected).
   * @param options.markedOptions Optional options to pass to marked.setOptions
   * @param options.indentation Indentation settings (style and size).
   * @param options.extensions An array of Tiptap extensions to register for markdown parsing and rendering.
   */
  constructor(options) {
    this.activeParseLexer = null;
    /**
     * Order in which extensions were registered. Used to resolve mark nesting
     * deterministically when several marks open on the same text node.
     *
     * The flattened extensions passed to the manager are pre-sorted by Tiptap's
     * extension priority (descending), which is also the order ProseMirror uses
     * to assign mark ranks. Recording that index here lets the serializer place
     * higher-priority / lower-rank marks (e.g. link with priority 1000) on the
     * outside without inspecting any rendered markdown output.
     */
    this.extensionRanks = /* @__PURE__ */ new Map();
    this.baseExtensions = [];
    this.extensions = [];
    /** Set of extension names whose `code` spec property is truthy (nodes and marks). */
    this.codeTypes = /* @__PURE__ */ new Set();
    /** Lazy cache of tag names declared by the registered schema's parseDOM rules. */
    this.schemaParseDomTagsCache = null;
    this.lastParseResult = null;
    var _a, _b, _c, _d, _e;
    this.markedInstance = (_a = options == null ? void 0 : options.marked) != null ? _a : marked;
    this.indentStyle = (_c = (_b = options == null ? void 0 : options.indentation) == null ? void 0 : _b.style) != null ? _c : "space";
    this.indentSize = (_e = (_d = options == null ? void 0 : options.indentation) == null ? void 0 : _d.size) != null ? _e : 2;
    this.baseExtensions = (options == null ? void 0 : options.extensions) || [];
    if ((options == null ? void 0 : options.markedOptions) && typeof this.markedInstance.setOptions === "function") {
      this.markedInstance.setOptions(options.markedOptions);
    }
    this.registry = /* @__PURE__ */ new Map();
    this.nodeTypeRegistry = /* @__PURE__ */ new Map();
    if (options == null ? void 0 : options.extensions) {
      this.baseExtensions = options.extensions;
      const flattened = sortExtensions(flattenExtensions(options.extensions));
      flattened.forEach((ext) => this.registerExtension(ext));
    }
  }
  /** Returns the underlying marked instance. */
  get instance() {
    return this.markedInstance;
  }
  /** Returns the correct indentCharacter (space or tab) */
  get indentCharacter() {
    return this.indentStyle === "space" ? " " : "	";
  }
  /** Returns the correct indentString repeated X times */
  get indentString() {
    return this.indentCharacter.repeat(this.indentSize);
  }
  /** Helper to quickly check whether a marked instance is available. */
  hasMarked() {
    return !!this.markedInstance;
  }
  /**
   * Register a Tiptap extension (Node/Mark/Extension). This will read
   * `markdownName`, `parseMarkdown`, `renderMarkdown` and `priority` from the
   * extension config (using the same resolution used across the codebase).
   */
  registerExtension(extension) {
    var _a, _b;
    this.extensions.push(extension);
    const isCode = callOrReturn(getExtensionField(extension, "code"));
    const name = extension.name;
    if (isCode) {
      this.codeTypes.add(name);
    }
    if (!this.extensionRanks.has(name)) {
      this.extensionRanks.set(name, this.extensionRanks.size);
    }
    const tokenName = getExtensionField(
      extension,
      "markdownTokenName"
    ) || name;
    const parseMarkdown = getExtensionField(extension, "parseMarkdown");
    const renderMarkdown = getExtensionField(extension, "renderMarkdown");
    const tokenizer = getExtensionField(extension, "markdownTokenizer");
    const markdownCfg = (_a = getExtensionField(extension, "markdownOptions")) != null ? _a : null;
    const isIndenting = (_b = markdownCfg == null ? void 0 : markdownCfg.indentsContent) != null ? _b : false;
    const htmlReopen = markdownCfg == null ? void 0 : markdownCfg.htmlReopen;
    const spec = {
      tokenName,
      nodeName: name,
      parseMarkdown,
      renderMarkdown,
      isIndenting,
      htmlReopen,
      tokenizer
    };
    if (tokenName && parseMarkdown) {
      const parseExisting = this.registry.get(tokenName) || [];
      parseExisting.push(spec);
      this.registry.set(tokenName, parseExisting);
    }
    if (renderMarkdown) {
      const renderExisting = this.nodeTypeRegistry.get(name) || [];
      renderExisting.push(spec);
      this.nodeTypeRegistry.set(name, renderExisting);
    }
    if (tokenizer && this.hasMarked()) {
      this.registerTokenizer(tokenizer);
    }
  }
  createLexer() {
    return new this.markedInstance.Lexer();
  }
  createTokenizerHelpers(lexer) {
    return {
      inlineTokens: (src) => lexer.inlineTokens(src),
      blockTokens: (src) => lexer.blockTokens(src)
    };
  }
  tokenizeInline(src) {
    var _a;
    return ((_a = this.activeParseLexer) != null ? _a : this.createLexer()).inlineTokens(src);
  }
  /**
   * Register a custom tokenizer with marked.js for parsing non-standard markdown syntax.
   */
  registerTokenizer(tokenizer) {
    if (!this.hasMarked()) {
      return;
    }
    const { name, start, level = "inline", tokenize } = tokenizer;
    const createTokenizerHelpers = this.createTokenizerHelpers.bind(this);
    const createLexer = this.createLexer.bind(this);
    let startCb;
    if (!start) {
      startCb = (src) => {
        const result = tokenize(src, [], this.createTokenizerHelpers(this.createLexer()));
        if (result && result.raw) {
          const index = src.indexOf(result.raw);
          return index;
        }
        return -1;
      };
    } else {
      startCb = typeof start === "function" ? start : (src) => src.indexOf(start);
    }
    const markedExtension = {
      name,
      level,
      start: startCb,
      tokenizer(src, tokens) {
        const helper = this.lexer ? createTokenizerHelpers(this.lexer) : createTokenizerHelpers(createLexer());
        const result = tokenize(src, tokens, helper);
        if (result && result.type) {
          return {
            ...result,
            type: result.type || name,
            raw: result.raw || "",
            tokens: result.tokens || []
          };
        }
        return void 0;
      },
      childTokens: []
    };
    this.markedInstance.use({
      extensions: [markedExtension]
    });
  }
  /** Get registered handlers for a token type and try each until one succeeds. */
  getHandlersForToken(type) {
    try {
      return this.registry.get(type) || [];
    } catch {
      return [];
    }
  }
  /** Get the first handler for a token type (for backwards compatibility). */
  getHandlerForToken(type) {
    const markdownHandlers = this.getHandlersForToken(type);
    if (markdownHandlers.length > 0) {
      return markdownHandlers[0];
    }
    const nodeTypeHandlers = this.getHandlersForNodeType(type);
    return nodeTypeHandlers.length > 0 ? nodeTypeHandlers[0] : void 0;
  }
  /** Get registered handlers for a node type (for rendering). */
  getHandlersForNodeType(type) {
    try {
      return this.nodeTypeRegistry.get(type) || [];
    } catch {
      return [];
    }
  }
  /**
   * Serialize a ProseMirror-like JSON document (or node array) to a Markdown string
   * using registered renderers and fallback renderers.
   */
  serialize(docOrContent) {
    if (!docOrContent) {
      return "";
    }
    const result = this.renderNodes(docOrContent, docOrContent);
    return this.isEmptyOutput(result) ? "" : result;
  }
  /**
   * Check if the markdown output represents an empty document.
   * Empty documents may contain only   entities or non-breaking space characters
   * which are used by the Paragraph extension to preserve blank lines.
   */
  isEmptyOutput(markdown) {
    if (!markdown || markdown.trim() === "") {
      return true;
    }
    const cleanedOutput = markdown.replace(/ /g, "").replace(/\u00A0/g, "").trim();
    return cleanedOutput === "";
  }
  /**
   * Parse markdown string into Tiptap JSON document using registered extension handlers.
   */
  parse(markdown) {
    if (!this.hasMarked()) {
      throw new Error("No marked instance available for parsing");
    }
    const previousParseLexer = this.activeParseLexer;
    const parseLexer = this.createLexer();
    this.activeParseLexer = parseLexer;
    try {
      const tokens = parseLexer.lex(markdown);
      const content = this.parseTokens(tokens, true);
      return {
        type: "doc",
        content
      };
    } finally {
      this.activeParseLexer = previousParseLexer;
    }
  }
  /**
   * Convert an array of marked tokens into Tiptap JSON nodes using registered extension handlers.
   */
  parseTokens(tokens, parseImplicitEmptyParagraphs = false) {
    const nonSpaceTokenIndexes = tokens.reduce((indexes, token, index) => {
      if (token.type !== "space") {
        indexes.push(index);
      }
      return indexes;
    }, []);
    let previousNonSpaceTokenIndex = -1;
    let nextNonSpaceTokenPointer = 0;
    return tokens.flatMap((token, index) => {
      var _a;
      while (nextNonSpaceTokenPointer < nonSpaceTokenIndexes.length && nonSpaceTokenIndexes[nextNonSpaceTokenPointer] < index) {
        previousNonSpaceTokenIndex = nonSpaceTokenIndexes[nextNonSpaceTokenPointer];
        nextNonSpaceTokenPointer += 1;
      }
      if (parseImplicitEmptyParagraphs && token.type === "space") {
        const nextNonSpaceTokenIndex = (_a = nonSpaceTokenIndexes[nextNonSpaceTokenPointer]) != null ? _a : -1;
        return this.createImplicitEmptyParagraphsFromSpace(
          token,
          previousNonSpaceTokenIndex,
          nextNonSpaceTokenIndex
        );
      }
      const parsed = this.parseToken(token, parseImplicitEmptyParagraphs);
      if (parsed === null) {
        return [];
      }
      return Array.isArray(parsed) ? parsed : [parsed];
    });
  }
  createImplicitEmptyParagraphsFromSpace(token, previousNonSpaceTokenIndex, nextNonSpaceTokenIndex) {
    const separatorCount = this.countParagraphSeparators(token.raw || "");
    if (separatorCount === 0) {
      return [];
    }
    const isBoundarySpace = previousNonSpaceTokenIndex === -1 || nextNonSpaceTokenIndex === -1;
    const emptyParagraphCount = Math.max(separatorCount - (isBoundarySpace ? 0 : 1), 0);
    return Array.from({ length: emptyParagraphCount }, () => ({ type: "paragraph", content: [] }));
  }
  countParagraphSeparators(raw) {
    return (raw.replace(/\r\n/g, "\n").match(/\n\n/g) || []).length;
  }
  /**
   * Parse a single token into Tiptap JSON using the appropriate registered handler.
   */
  parseToken(token, parseImplicitEmptyParagraphs = false) {
    if (!token.type) {
      return null;
    }
    if (token.type === "list") {
      return this.parseListToken(token);
    }
    const handlers = this.getHandlersForToken(token.type);
    const helpers = this.createParseHelpers();
    const result = handlers.find((handler) => {
      if (!handler.parseMarkdown) {
        return false;
      }
      const parseResult = handler.parseMarkdown(token, helpers);
      const normalized = this.normalizeParseResult(parseResult);
      if (normalized && (!Array.isArray(normalized) || normalized.length > 0)) {
        this.lastParseResult = normalized;
        return true;
      }
      return false;
    });
    if (result && this.lastParseResult) {
      const toReturn = this.lastParseResult;
      this.lastParseResult = null;
      return toReturn;
    }
    return this.parseFallbackToken(token, parseImplicitEmptyParagraphs);
  }
  /**
   * Parse a list token, handling mixed bullet and task list items by splitting them into separate lists.
   * This ensures that consecutive task items and bullet items are grouped and parsed as separate list nodes.
   *
   * @param token The list token to parse
   * @returns Array of parsed list nodes, or null if parsing fails
   */
  parseListToken(token) {
    if (!token.items || token.items.length === 0) {
      return this.parseTokenWithHandlers(token);
    }
    const hasTask = token.items.some((item) => isTaskItem(item).isTask);
    const hasNonTask = token.items.some((item) => !isTaskItem(item).isTask);
    if (!hasTask || !hasNonTask || this.getHandlersForToken("taskList").length === 0) {
      return this.parseTokenWithHandlers(token);
    }
    const groups = [];
    let currentGroup = [];
    let currentType = null;
    for (let i = 0; i < token.items.length; i += 1) {
      const item = token.items[i];
      const { isTask, checked, indentLevel } = isTaskItem(item);
      let processedItem = item;
      if (isTask) {
        const raw = item.raw || item.text || "";
        const lines = raw.split("\n");
        const firstLineMatch = lines[0].match(/^\s*[-+*]\s+\[([ xX])\]\s+(.*)$/);
        const mainContent = firstLineMatch ? firstLineMatch[2] : "";
        let nestedTokens = [];
        if (lines.length > 1) {
          const nestedRaw = lines.slice(1).join("\n");
          if (nestedRaw.trim()) {
            const nestedLines = lines.slice(1);
            const nonEmptyLines = nestedLines.filter((line) => line.trim());
            if (nonEmptyLines.length > 0) {
              const minIndent = Math.min(
                ...nonEmptyLines.map((line) => line.length - line.trimStart().length)
              );
              const trimmedLines = nestedLines.map((line) => {
                if (!line.trim()) {
                  return "";
                }
                return line.slice(minIndent);
              });
              const nestedContent = trimmedLines.join("\n").trim();
              if (nestedContent) {
                nestedTokens = this.markedInstance.lexer(`${nestedContent}
`);
              }
            }
          }
        }
        processedItem = {
          type: "taskItem",
          raw: "",
          mainContent,
          indentLevel,
          checked: checked != null ? checked : false,
          text: mainContent,
          tokens: this.tokenizeInline(mainContent),
          nestedTokens
        };
      }
      const itemType = isTask ? "taskList" : "list";
      if (currentType !== itemType) {
        if (currentGroup.length > 0) {
          groups.push({ type: currentType, items: currentGroup });
        }
        currentGroup = [processedItem];
        currentType = itemType;
      } else {
        currentGroup.push(processedItem);
      }
    }
    if (currentGroup.length > 0) {
      groups.push({ type: currentType, items: currentGroup });
    }
    const results = [];
    for (let i = 0; i < groups.length; i += 1) {
      const group = groups[i];
      const subToken = { ...token, type: group.type, items: group.items };
      const parsed = this.parseToken(subToken);
      if (parsed) {
        if (Array.isArray(parsed)) {
          results.push(...parsed);
        } else {
          results.push(parsed);
        }
      }
    }
    return results.length > 0 ? results : null;
  }
  /**
   * Parse a token using registered handlers (extracted for reuse).
   */
  parseTokenWithHandlers(token) {
    if (!token.type) {
      return null;
    }
    const handlers = this.getHandlersForToken(token.type);
    const helpers = this.createParseHelpers();
    const result = handlers.find((handler) => {
      if (!handler.parseMarkdown) {
        return false;
      }
      const parseResult = handler.parseMarkdown(token, helpers);
      const normalized = this.normalizeParseResult(parseResult);
      if (normalized && (!Array.isArray(normalized) || normalized.length > 0)) {
        this.lastParseResult = normalized;
        return true;
      }
      return false;
    });
    if (result && this.lastParseResult) {
      const toReturn = this.lastParseResult;
      this.lastParseResult = null;
      return toReturn;
    }
    return this.parseFallbackToken(token);
  }
  /**
   * Creates helper functions for parsing markdown tokens.
   * @returns An object containing helper functions for parsing.
   */
  createParseHelpers() {
    return {
      parseInline: (tokens) => this.parseInlineTokens(tokens),
      tokenizeInline: (src) => this.tokenizeInline(src),
      parseChildren: (tokens) => this.parseTokens(tokens),
      parseBlockChildren: (tokens) => this.parseTokens(tokens, true),
      createTextNode: (text, marks) => {
        const node = {
          type: "text",
          text,
          marks: marks || void 0
        };
        return node;
      },
      createNode: (type, attrs, content) => {
        const node = {
          type,
          attrs: attrs || void 0,
          content: content || void 0
        };
        if (!attrs || Object.keys(attrs).length === 0) {
          delete node.attrs;
        }
        return node;
      },
      applyMark: (markType, content, attrs) => ({
        mark: markType,
        content,
        attrs: attrs && Object.keys(attrs).length > 0 ? attrs : void 0
      })
    };
  }
  /**
   * Escape special regex characters in a string.
   */
  escapeRegex(str) {
    return str.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
  }
  /**
   * Parse inline tokens (bold, italic, links, etc.) into text nodes with marks.
   * This is the complex part that handles mark nesting and boundaries.
   */
  parseInlineTokens(tokens) {
    var _a, _b, _c, _d;
    const result = [];
    for (let i = 0; i < tokens.length; i += 1) {
      const token = tokens[i];
      if (token.type === "text") {
        result.push({
          type: "text",
          text: decodeHtmlEntities(token.text || "")
        });
      } else if (token.type === "escape") {
        result.push({
          type: "text",
          text: token.text || ""
        });
      } else if (token.type === "html") {
        const raw = ((_b = (_a = token.raw) != null ? _a : token.text) != null ? _b : "").toString();
        const isClosing = /^<\/[\s]*[\w-]+/i.test(raw);
        const openMatch = raw.match(/^<[\s]*([\w-]+)(\s|>|\/|$)/i);
        if (!isClosing && openMatch && !/\/>$/.test(raw)) {
          const tagName = openMatch[1];
          const escapedTagName = this.escapeRegex(tagName);
          const closingRegex = new RegExp(`^<\\/\\s*${escapedTagName}\\b`, "i");
          let foundIndex = -1;
          const parts = [raw];
          for (let j = i + 1; j < tokens.length; j += 1) {
            const t = tokens[j];
            const tRaw = ((_d = (_c = t.raw) != null ? _c : t.text) != null ? _d : "").toString();
            parts.push(tRaw);
            if (t.type === "html" && closingRegex.test(tRaw)) {
              foundIndex = j;
              break;
            }
          }
          if (foundIndex !== -1) {
            const mergedRaw = parts.join("");
            const mergedToken = {
              type: "html",
              raw: mergedRaw,
              text: mergedRaw,
              block: false
            };
            const parsed = this.parseHTMLToken(mergedToken);
            if (parsed) {
              const normalized = this.normalizeParseResult(parsed);
              if (Array.isArray(normalized)) {
                result.push(...normalized);
              } else if (normalized) {
                result.push(normalized);
              }
            }
            i = foundIndex;
            continue;
          }
        }
        const parsedSingle = this.parseHTMLToken(token);
        if (parsedSingle) {
          const normalized = this.normalizeParseResult(parsedSingle);
          if (Array.isArray(normalized)) {
            result.push(...normalized);
          } else if (normalized) {
            result.push(normalized);
          }
        }
      } else if (token.type) {
        const markHandler = this.getHandlerForToken(token.type);
        if (markHandler && markHandler.parseMarkdown) {
          const helpers = this.createParseHelpers();
          const parsed = markHandler.parseMarkdown(token, helpers);
          if (this.isMarkResult(parsed)) {
            const markedContent = this.applyMarkToContent(parsed.mark, parsed.content, parsed.attrs);
            result.push(...markedContent);
          } else {
            const normalized = this.normalizeParseResult(parsed);
            if (Array.isArray(normalized)) {
              result.push(...normalized);
            } else if (normalized) {
              result.push(normalized);
            }
          }
        } else if (token.tokens) {
          result.push(...this.parseInlineTokens(token.tokens));
        }
      }
    }
    for (let i = result.length - 1; i > 0; i -= 1) {
      const current = result[i];
      const previous = result[i - 1];
      if (current.type === "text" && previous.type === "text") {
        const currentMarks = current.marks || [];
        const previousMarks = previous.marks || [];
        if (marksEqual(currentMarks, previousMarks)) {
          previous.text = (previous.text || "") + (current.text || "");
          result.splice(i, 1);
        }
      }
    }
    return result;
  }
  /**
   * Apply a mark to content nodes.
   */
  applyMarkToContent(markType, content, attrs) {
    return content.map((node) => {
      if (node.type === "text") {
        const existingMarks = node.marks || [];
        const newMark = attrs ? { type: markType, attrs } : { type: markType };
        return {
          ...node,
          marks: [...existingMarks, newMark]
        };
      }
      return {
        ...node,
        content: node.content ? this.applyMarkToContent(markType, node.content, attrs) : void 0
      };
    });
  }
  /**
  * Check if a parse result represents a mark to be applied.
  */
  isMarkResult(result) {
    return result && typeof result === "object" && "mark" in result;
  }
  /**
   * Normalize parse results to ensure they're valid JSONContent.
   */
  normalizeParseResult(result) {
    if (!result) {
      return null;
    }
    if (this.isMarkResult(result)) {
      return result.content;
    }
    return result;
  }
  /**
   * Fallback parsing for common tokens when no specific handler is registered.
   */
  parseFallbackToken(token, parseImplicitEmptyParagraphs = false) {
    switch (token.type) {
      case "paragraph":
        return {
          type: "paragraph",
          content: token.tokens ? this.parseInlineTokens(token.tokens) : []
        };
      case "heading":
        return {
          type: "heading",
          attrs: { level: token.depth || 1 },
          content: token.tokens ? this.parseInlineTokens(token.tokens) : []
        };
      case "text":
        return {
          type: "text",
          text: decodeHtmlEntities(token.text || "")
        };
      case "html":
        return this.parseHTMLToken(token);
      // handle Marked escape tokens as literal text (e.g. backslash-escaped characters)
      case "escape":
        return {
          type: "text",
          text: token.text || ""
        };
      case "space":
        return null;
      default:
        if (token.tokens) {
          return this.parseTokens(token.tokens, parseImplicitEmptyParagraphs);
        }
        return null;
    }
  }
  /**
   * Parse an HTML token from marked into JSONContent using the registered
   * extensions' `parseHTML` rules. Falls back to literal text when the HTML
   * has nothing for the schema to keep.
   *
   * @param token Marked HTML token (block or inline).
   * @example
   *   parseHTMLToken({ type: 'html', raw: '<em>hi</em>', block: false })
   *   // → text node with an italic mark
   */
  parseHTMLToken(token) {
    const html = token.text || token.raw || "";
    if (!html.trim()) {
      return null;
    }
    if (typeof window === "undefined") {
      if (token.block) {
        return {
          type: "paragraph",
          content: [
            {
              type: "text",
              text: html
            }
          ]
        };
      }
      return {
        type: "text",
        text: html
      };
    }
    if (this.isUnrecognizedHtml(html)) {
      return this.htmlAsLiteralText(html, !!token.block);
    }
    try {
      const parsed = generateJSON(html, this.baseExtensions);
      if (parsed.type === "doc" && parsed.content) {
        if (token.block) {
          return parsed.content;
        }
        if (parsed.content.length === 1 && parsed.content[0].type === "paragraph" && parsed.content[0].content) {
          return parsed.content[0].content;
        }
        return parsed.content;
      }
      return parsed;
    } catch (error) {
      throw new Error(`Failed to parse HTML in markdown: ${error}`);
    }
  }
  /**
   * Returns true when the HTML contains an element the browser classifies as
   * `HTMLUnknownElement` – unless a registered extension declares the tag
   * name in its parseDOM rules, in which case it is treated as a known
   * custom element.
   *
   * Recognized but empty elements such as `<em></em>` or `<span></span>`,
   * and hyphenated custom elements like `<my-mention>`, are not considered
   * unrecognized.
   *
   * @param html Raw HTML string from a marked token.
   * @example
   *   isUnrecognizedHtml('<enter foo bar>')  // → true
   *   isUnrecognizedHtml('<em></em>')        // → false (empty, but real tag)
   *   isUnrecognizedHtml('<em>hi</em>')      // → false
   *   isUnrecognizedHtml('<my-el></my-el>')  // → false (valid custom element)
   *   isUnrecognizedHtml('<br>')             // → false
   */
  isUnrecognizedHtml(html) {
    if (typeof window === "undefined" || typeof window.DOMParser === "undefined") {
      return false;
    }
    const dom = new window.DOMParser().parseFromString(`<body>${html}</body>`, "text/html").body;
    const elements = dom.querySelectorAll("*");
    if (elements.length === 0) {
      return false;
    }
    const schemaTags = this.getSchemaParseDomTags();
    return Array.from(elements).some((el) => {
      if (!isHtmlUnknownElement(el)) {
        return false;
      }
      const tagName = el.tagName.toLowerCase();
      return !schemaTags.has(tagName);
    });
  }
  /**
   * Collect the lower-cased tag names declared by the registered extensions'
   * parseDOM rules, so custom node/mark elements that use non-hyphenated,
   * non-standard tag names are treated as recognized HTML. Result is cached for the
   * lifetime of the manager since extensions don't change after registration.
   *
   * @example
   *   // After registering an extension with parseDOM [{ tag: 'something' }]
   *   getSchemaParseDomTags().has('something') // → true
   */
  getSchemaParseDomTags() {
    if (this.schemaParseDomTagsCache) {
      return this.schemaParseDomTagsCache;
    }
    const tags = /* @__PURE__ */ new Set();
    try {
      const schema = getSchema(this.baseExtensions);
      const collect = (spec) => {
        const parseDOM = spec == null ? void 0 : spec.parseDOM;
        if (!Array.isArray(parseDOM)) {
          return;
        }
        parseDOM.forEach((rule) => {
          if (typeof (rule == null ? void 0 : rule.tag) === "string") {
            const match = rule.tag.match(/^[a-zA-Z][\w-]*/);
            if (match) {
              tags.add(match[0].toLowerCase());
            }
          }
        });
      };
      Object.values(schema.nodes).forEach((type) => collect(type.spec));
      Object.values(schema.marks).forEach((type) => collect(type.spec));
    } catch {
    }
    this.schemaParseDomTagsCache = tags;
    return tags;
  }
  /**
   * Build a JSONContent that preserves the original HTML markup as literal
   * text. Used when the HTML would otherwise be silently dropped during
   * schema-aware parsing.
   *
   * @param html Raw HTML string to preserve verbatim.
   * @param isBlock Whether to wrap the text in a paragraph node (block tokens)
   *   or return it as a bare text node (inline tokens).
   * @example
   *   htmlAsLiteralText('<enter foo>', true)
   *   // → { type: 'paragraph', content: [{ type: 'text', text: '<enter foo>' }] }
   */
  htmlAsLiteralText(html, isBlock) {
    const text = html.replace(/\s+$/, "");
    if (!text) {
      return null;
    }
    if (isBlock) {
      return {
        type: "paragraph",
        content: [{ type: "text", text }]
      };
    }
    return { type: "text", text };
  }
  /**
   * Encode HTML entities in text unless the node is inside a code context
   * (code mark or code-block parent) where literal characters should be preserved.
   * Also backslash-escape markdown-significant characters in non-code text to
   * prevent them from being misinterpreted as formatting delimiters.
   */
  encodeTextForMarkdown(text, node, parentNode) {
    const isInsideCode = (parentNode == null ? void 0 : parentNode.type) != null && this.codeTypes.has(parentNode.type) || (node.marks || []).some((m) => this.codeTypes.has(typeof m === "string" ? m : m.type));
    if (isInsideCode) {
      return text;
    }
    return this.escapeMarkdownSyntax(encodeHtmlEntities(text));
  }
  /**
   * Backslash-escape characters that have special meaning in markdown inline
   * syntax. This prevents literal characters in text nodes from being
   * misinterpreted as formatting delimiters when the output is parsed again.
   *
   * The set covers the most common inline markdown syntax characters.
   * Characters inside code blocks/code marks are skipped by the caller
   * (`encodeTextForMarkdown`) via the existing `isInsideCode` guard.
   */
  escapeMarkdownSyntax(text) {
    return text.replace(/([\\`*_[\]~])/g, "\\$1");
  }
  renderNodeToMarkdown(node, parentNode, index = 0, level = 0, meta = {}) {
    var _a;
    if (node.type === "text") {
      return this.encodeTextForMarkdown(node.text || "", node, parentNode);
    }
    if (!node.type) {
      return "";
    }
    const handler = this.getHandlerForToken(node.type);
    if (!handler) {
      return "";
    }
    const previousNode = Array.isArray(parentNode == null ? void 0 : parentNode.content) && index > 0 ? parentNode.content[index - 1] : void 0;
    const helpers = {
      renderChildren: (nodes, separator) => {
        const childLevel = handler.isIndenting ? level + 1 : level;
        if (!Array.isArray(nodes) && nodes.content) {
          return this.renderNodes(
            nodes.content,
            node,
            separator || "",
            index,
            childLevel
          );
        }
        return this.renderNodes(nodes, node, separator || "", index, childLevel);
      },
      renderChild: (childNode, childIndex) => {
        const childLevel = handler.isIndenting ? level + 1 : level;
        return this.renderNodeToMarkdown(childNode, node, childIndex, childLevel);
      },
      indent: (content) => {
        return this.indentString + content;
      },
      wrapInBlock: wrapInMarkdownBlock
    };
    const context = {
      index,
      level,
      parentType: parentNode == null ? void 0 : parentNode.type,
      previousNode,
      meta: {
        parentAttrs: parentNode == null ? void 0 : parentNode.attrs,
        ...meta
      }
    };
    const rendered = ((_a = handler.renderMarkdown) == null ? void 0 : _a.call(handler, node, helpers, context)) || "";
    return rendered;
  }
  /**
   * Render a node or an array of nodes. Parent type controls how children
   * are joined (which determines newline insertion between children).
   */
  renderNodes(nodeOrNodes, parentNode, separator = "", index = 0, level = 0) {
    if (!Array.isArray(nodeOrNodes)) {
      if (!nodeOrNodes.type) {
        return "";
      }
      return this.renderNodeToMarkdown(nodeOrNodes, parentNode, index, level);
    }
    return this.renderNodesWithMarkBoundaries(nodeOrNodes, parentNode, separator, level);
  }
  /**
   * Render an array of nodes while properly tracking mark boundaries.
   * This handles cases where marks span across multiple text nodes.
   */
  renderNodesWithMarkBoundaries(nodes, parentNode, separator = "", level = 0) {
    const result = [];
    const activeMarks = /* @__PURE__ */ new Map();
    const reopenWithHtmlOnNextOpen = /* @__PURE__ */ new Set();
    const markOpeningModes = /* @__PURE__ */ new Map();
    nodes.forEach((node, i) => {
      const nextNode = i < nodes.length - 1 ? nodes[i + 1] : null;
      if (!node.type) {
        return;
      }
      if (node.type === "text") {
        let textContent = this.encodeTextForMarkdown(node.text || "", node, parentNode);
        const currentMarks = new Map((node.marks || []).map((mark) => [mark.type, mark]));
        const marksToOpen = this.getMarksToOpenForSerialization(activeMarks, currentMarks, nextNode);
        const marksToClose = findMarksToClose(currentMarks, nextNode);
        const activeMarksClosingHere = marksToClose.filter((markType) => activeMarks.has(markType));
        const hasCrossedBoundary = activeMarksClosingHere.length > 0 && marksToOpen.length > 0;
        let middleTrailingWhitespace = "";
        if (marksToClose.length > 0 && !hasCrossedBoundary) {
          const middleTrailingMatch = textContent.match(/(\s+)$/);
          if (middleTrailingMatch) {
            middleTrailingWhitespace = middleTrailingMatch[1];
            textContent = textContent.slice(0, -middleTrailingWhitespace.length);
          }
        }
        if (!hasCrossedBoundary) {
          marksToClose.slice().reverse().forEach((markType) => {
            if (!activeMarks.has(markType)) {
              return;
            }
            const mark = currentMarks.get(markType);
            const closeMarkdown = this.getMarkClosing(
              markType,
              mark,
              markOpeningModes.get(markType)
            );
            if (closeMarkdown) {
              textContent += closeMarkdown;
            }
            if (activeMarks.has(markType)) {
              activeMarks.delete(markType);
              markOpeningModes.delete(markType);
            }
          });
        }
        let leadingWhitespace = "";
        if (marksToOpen.length > 0) {
          const leadingMatch = textContent.match(/^(\s+)/);
          if (leadingMatch) {
            leadingWhitespace = leadingMatch[1];
            textContent = textContent.slice(leadingWhitespace.length);
          }
        }
        marksToOpen.forEach(({ type, mark }) => {
          const openingMode = reopenWithHtmlOnNextOpen.has(type) ? "html" : "markdown";
          const openMarkdown = this.getMarkOpening(type, mark, openingMode);
          if (openMarkdown) {
            textContent = openMarkdown + textContent;
          }
          markOpeningModes.set(type, openingMode);
          reopenWithHtmlOnNextOpen.delete(type);
        });
        if (!hasCrossedBoundary) {
          marksToOpen.slice().reverse().forEach(({ type, mark }) => {
            activeMarks.set(type, mark);
          });
        }
        textContent = leadingWhitespace + textContent;
        let marksToCloseAtEnd;
        if (hasCrossedBoundary) {
          const nextMarkTypes = new Set(((nextNode == null ? void 0 : nextNode.marks) || []).map((mark) => mark.type));
          marksToOpen.forEach(({ type }) => {
            if (nextMarkTypes.has(type) && this.getHtmlReopenTags(type)) {
              reopenWithHtmlOnNextOpen.add(type);
            }
          });
          const activeMarkKeys = Array.from(activeMarks.keys());
          const activeMarksClosingHereLifo = activeMarksClosingHere.slice().sort((a, b) => activeMarkKeys.indexOf(b) - activeMarkKeys.indexOf(a));
          marksToCloseAtEnd = [
            ...marksToOpen.map((m) => m.type),
            // inner (opened here) — close first
            ...activeMarksClosingHereLifo
            // outer (were active before) — close last, LIFO
          ];
        } else {
          marksToCloseAtEnd = findMarksToCloseAtEnd(
            activeMarks,
            currentMarks,
            nextNode,
            this.markSetsEqual.bind(this)
          );
        }
        let trailingWhitespace = "";
        if (marksToCloseAtEnd.length > 0) {
          const trailingMatch = textContent.match(/(\s+)$/);
          if (trailingMatch) {
            trailingWhitespace = trailingMatch[1];
            textContent = textContent.slice(0, -trailingWhitespace.length);
          }
        }
        marksToCloseAtEnd.forEach((markType) => {
          var _a;
          const mark = (_a = activeMarks.get(markType)) != null ? _a : currentMarks.get(markType);
          const closeMarkdown = this.getMarkClosing(markType, mark, markOpeningModes.get(markType));
          if (closeMarkdown) {
            textContent += closeMarkdown;
          }
          activeMarks.delete(markType);
          markOpeningModes.delete(markType);
        });
        textContent += trailingWhitespace;
        textContent += middleTrailingWhitespace;
        result.push(textContent);
      } else {
        const nodeMarkTypes = new Set((node.marks || []).map((mark) => mark.type));
        const marksToReopen = /* @__PURE__ */ new Map();
        const openingModesToReopen = /* @__PURE__ */ new Map();
        activeMarks.forEach((mark, type) => {
          var _a;
          if (nodeMarkTypes.has(type)) {
            marksToReopen.set(type, mark);
            openingModesToReopen.set(type, (_a = markOpeningModes.get(type)) != null ? _a : "markdown");
          }
        });
        const beforeMarkdown = closeMarksBeforeNode(activeMarks, (markType, mark) => {
          return this.getMarkClosing(markType, mark, markOpeningModes.get(markType));
        });
        markOpeningModes.clear();
        const nodeContent = this.renderNodeToMarkdown(node, parentNode, i, level);
        const afterMarkdown = node.type === "hardBreak" ? "" : reopenMarksAfterNode(marksToReopen, activeMarks, (markType, mark) => {
          var _a;
          const openingMode = (_a = openingModesToReopen.get(markType)) != null ? _a : "markdown";
          markOpeningModes.set(markType, openingMode);
          return this.getMarkOpening(markType, mark, openingMode);
        });
        result.push(beforeMarkdown + nodeContent + afterMarkdown);
      }
    });
    return result.join(separator);
  }
  /**
   * Get the opening markdown syntax for a mark type.
   */
  getMarkOpening(markType, mark, openingMode = "markdown") {
    var _a;
    if (openingMode === "html") {
      return ((_a = this.getHtmlReopenTags(markType)) == null ? void 0 : _a.open) || "";
    }
    const handlers = this.getHandlersForNodeType(markType);
    const handler = handlers.length > 0 ? handlers[0] : void 0;
    if (!handler || !handler.renderMarkdown) {
      return "";
    }
    const placeholder = "\uE000__TIPTAP_MARKDOWN_PLACEHOLDER__\uE001";
    const syntheticNode = {
      type: markType,
      attrs: mark.attrs || {},
      content: [{ type: "text", text: placeholder }]
    };
    try {
      const rendered = handler.renderMarkdown(
        syntheticNode,
        {
          renderChildren: () => placeholder,
          renderChild: () => placeholder,
          indent: (content) => content,
          wrapInBlock: (prefix, content) => prefix + content
        },
        { index: 0, level: 0, parentType: "text", meta: {} }
      );
      const placeholderIndex = rendered.indexOf(placeholder);
      return placeholderIndex >= 0 ? rendered.substring(0, placeholderIndex) : "";
    } catch (err) {
      throw new Error(`Failed to get mark opening for ${markType}: ${err}`);
    }
  }
  /**
   * Get the closing markdown syntax for a mark type.
   */
  getMarkClosing(markType, mark, openingMode = "markdown") {
    var _a;
    if (openingMode === "html") {
      return ((_a = this.getHtmlReopenTags(markType)) == null ? void 0 : _a.close) || "";
    }
    const handlers = this.getHandlersForNodeType(markType);
    const handler = handlers.length > 0 ? handlers[0] : void 0;
    if (!handler || !handler.renderMarkdown) {
      return "";
    }
    const placeholder = "\uE000__TIPTAP_MARKDOWN_PLACEHOLDER__\uE001";
    const syntheticNode = {
      type: markType,
      attrs: mark.attrs || {},
      content: [{ type: "text", text: placeholder }]
    };
    try {
      const rendered = handler.renderMarkdown(
        syntheticNode,
        {
          renderChildren: () => placeholder,
          renderChild: () => placeholder,
          indent: (content) => content,
          wrapInBlock: (prefix, content) => prefix + content
        },
        { index: 0, level: 0, parentType: "text", meta: {} }
      );
      const placeholderIndex = rendered.indexOf(placeholder);
      const placeholderEnd = placeholderIndex + placeholder.length;
      return placeholderIndex >= 0 ? rendered.substring(placeholderEnd) : "";
    } catch (err) {
      throw new Error(`Failed to get mark closing for ${markType}: ${err}`);
    }
  }
  /**
   * Returns the inline HTML tags an extension exposes for overlap-boundary
   * reopen handling, if that mark explicitly opted into HTML reopen mode.
   */
  getHtmlReopenTags(markType) {
    const handlers = this.getHandlersForNodeType(markType);
    const handler = handlers.length > 0 ? handlers[0] : void 0;
    return handler == null ? void 0 : handler.htmlReopen;
  }
  /**
   * Check if two mark sets are equal (same types and matching attributes).
   */
  markSetsEqual(marks1, marks2) {
    if (marks1.size !== marks2.size) {
      return false;
    }
    return Array.from(marks1.entries()).every(([type, mark]) => {
      const otherMark = marks2.get(type);
      return otherMark && attrsEqual2(mark.attrs, otherMark.attrs);
    });
  }
  /**
   * Decide the order in which marks open on the current text node.
   *
   * The returned array is iterated head-first when prepending opening
   * delimiters, so the first entry becomes the innermost mark in the emitted
   * markdown and the last becomes the outermost. Two stable signals drive
   * the order — neither one inspects any rendered markdown:
   *
   *   1. Marks that end on this node must be inner relative to marks that
   *      continue into the next node, otherwise the delimiters interleave
   *      instead of nesting.
   *   2. Within each lifetime group, marks are sorted so that lower
   *      registration ranks (i.e. higher Tiptap extension priorities) end up
   *      outermost. ProseMirror assigns mark ranks in the same priority-aware
   *      order Tiptap uses when building the schema, so link (priority 1000)
   *      naturally wraps bold/italic without the serializer needing to peek
   *      at how any particular mark renders.
   */
  getMarksToOpenForSerialization(activeMarks, currentMarks, nextNode) {
    const marksToOpen = findMarksToOpen(activeMarks, currentMarks);
    if (marksToOpen.length <= 1) {
      return marksToOpen;
    }
    const nextMarks = (nextNode == null ? void 0 : nextNode.marks) || [];
    const continuesInNextNode = (markType, attrs) => nextMarks.some((m) => m.type === markType && attrsEqual2(m.attrs, attrs));
    const byRankInnerFirst = (a, b) => {
      var _a, _b;
      const rankA = (_a = this.extensionRanks.get(a.type)) != null ? _a : Number.MAX_SAFE_INTEGER;
      const rankB = (_b = this.extensionRanks.get(b.type)) != null ? _b : Number.MAX_SAFE_INTEGER;
      if (rankA !== rankB) {
        return rankB - rankA;
      }
      return a.type.localeCompare(b.type);
    };
    const endingHere = marksToOpen.filter((mark) => !continuesInNextNode(mark.type, mark.mark.attrs)).sort(byRankInnerFirst);
    const continuing = marksToOpen.filter((mark) => continuesInNextNode(mark.type, mark.mark.attrs)).sort(byRankInnerFirst);
    return [...endingHere, ...continuing];
  }
};
var MarkdownManager_default = MarkdownManager;

// src/Extension.ts
var Markdown = Extension.create({
  name: "markdown",
  addOptions() {
    return {
      indentation: { style: "space", size: 2 },
      marked: void 0,
      markedOptions: {}
    };
  },
  addCommands() {
    return {
      setContent: (content, options) => {
        if (!(options == null ? void 0 : options.contentType)) {
          return commands.setContent(content, options);
        }
        const actualContentType = assumeContentType(content, options == null ? void 0 : options.contentType);
        if (actualContentType !== "markdown" || !this.editor.markdown) {
          return commands.setContent(content, options);
        }
        const mdContent = this.editor.markdown.parse(content);
        return commands.setContent(mdContent, options);
      },
      insertContent: (value, options) => {
        if (!(options == null ? void 0 : options.contentType)) {
          return commands.insertContent(value, options);
        }
        const actualContentType = assumeContentType(value, options == null ? void 0 : options.contentType);
        if (actualContentType !== "markdown" || !this.editor.markdown) {
          return commands.insertContent(value, options);
        }
        const mdContent = this.editor.markdown.parse(value);
        return commands.insertContent(mdContent, options);
      },
      insertContentAt: (position, value, options) => {
        if (!(options == null ? void 0 : options.contentType)) {
          return commands.insertContentAt(position, value, options);
        }
        const actualContentType = assumeContentType(value, options == null ? void 0 : options.contentType);
        if (actualContentType !== "markdown" || !this.editor.markdown) {
          return commands.insertContentAt(position, value, options);
        }
        const mdContent = this.editor.markdown.parse(value);
        return commands.insertContentAt(position, mdContent, options);
      }
    };
  },
  addStorage() {
    return {
      manager: new MarkdownManager_default({
        indentation: this.options.indentation,
        marked: this.options.marked,
        markedOptions: this.options.markedOptions,
        extensions: []
      })
    };
  },
  onBeforeCreate() {
    var _a;
    if (this.editor.markdown) {
      console.error(
        "[tiptap][markdown]: There is already a `markdown` property on the editor instance. This might lead to unexpected behavior."
      );
      return;
    }
    this.storage.manager = new MarkdownManager_default({
      indentation: this.options.indentation,
      marked: this.options.marked,
      markedOptions: this.options.markedOptions,
      extensions: this.editor.extensionManager.baseExtensions
    });
    this.editor.markdown = this.storage.manager;
    this.editor.getMarkdown = () => {
      return this.storage.manager.serialize(this.editor.getJSON());
    };
    if (!this.editor.options.contentType) {
      return;
    }
    const assumedType = assumeContentType(
      this.editor.options.content,
      this.editor.options.contentType
    );
    if (assumedType !== "markdown") {
      return;
    }
    if (!this.editor.markdown) {
      throw new Error(
        '[tiptap][markdown]: The `contentType` option is set to "markdown", but the Markdown extension is not added to the editor. Please add the Markdown extension to use this feature.'
      );
    }
    if (this.editor.options.content === void 0 || typeof this.editor.options.content !== "string") {
      throw new Error(
        '[tiptap][markdown]: The `contentType` option is set to "markdown", but the initial content is not a string. Please provide the initial content as a markdown string.'
      );
    }
    const json = this.editor.markdown.parse(this.editor.options.content);
    if ((_a = json.content) == null ? void 0 : _a.length) {
      this.editor.options.content = json;
    }
  }
});
export {
  Markdown,
  MarkdownManager,
  assumeContentType,
  closeMarksBeforeNode,
  findMarksToClose,
  findMarksToCloseAtEnd,
  findMarksToOpen,
  isTaskItem,
  reopenMarksAfterNode,
  wrapInMarkdownBlock
};
//# sourceMappingURL=index.js.map